Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11603760 | Shield method | Naoki Kawasaki, Koichi Kaburaki | 2023-03-14 |
| 11572970 | Vent pipe isolation balloon for liquefied gas storage tank and vent pipe isolation device | Kodai Maeno | 2023-02-07 |